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<div class="title">JsonReader.C</div>  </div>
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<a href="JsonReader_8C.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#include &lt;fstream&gt;</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="preprocessor">#include &lt;jsoncpp/json/json.h&gt;</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;</div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// See install instructions here:</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">// https://linux.tips/programming/how-to-install-and-use-json-cpp-library-on-ubuntu-linux-os</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;</div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">// Repository on GitHub:</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">// https://github.com/open-source-parsers/jsoncpp</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">// Doxygen pages for JsonCpp</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">// https://open-source-parsers.github.io/jsoncpp-docs/doxygen/index.html</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">// Run this thing using</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">// g++ JsonReader.C -o JsonReader -ljsoncpp &amp;&amp; ./JsonReader</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="keyword">using namespace </span><a class="code" href="namespaceJson.html">Json</a>;</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="JsonReader_8C.html#ae66f6b31b5ad750f1fe042a706a4e3d4">   20</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="JsonReader_8C.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>()</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;{</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;  <span class="comment">// * Attempt to load input file * //</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">char</span>* filename = <span class="stringliteral">&quot;tests/data/JsonReader.json&quot;</span>;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;  ifstream    ifs(filename);</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;  <span class="keywordflow">if</span>(!ifs.good())</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;  {</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;    cout &lt;&lt; <span class="stringliteral">&quot;ERROR: File \&quot;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;\&quot; does not exist&quot;</span> &lt;&lt; endl;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;  }</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;  <span class="comment">// * Read as JSON * //</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;  Reader reader;</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;  <span class="keywordflow">if</span>(!ifs.good())</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;  {</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    cout &lt;&lt; <span class="stringliteral">&quot;ERROR: File \&quot;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;\&quot; is not OK&quot;</span> &lt;&lt; endl;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;  }</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;  Value root;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;  reader.parse(ifs, root);</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;  <span class="comment">// * Load first values * //</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;  cout &lt;&lt; <span class="stringliteral">&quot;Last name:  &quot;</span> &lt;&lt; root[<span class="stringliteral">&quot;last name&quot;</span>].asString() &lt;&lt; endl;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;  cout &lt;&lt; <span class="stringliteral">&quot;First name: &quot;</span> &lt;&lt; root[<span class="stringliteral">&quot;first name&quot;</span>].asString() &lt;&lt; endl;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;  cout &lt;&lt; <span class="stringliteral">&quot;Integer:    &quot;</span> &lt;&lt; root[<span class="stringliteral">&quot;integer&quot;</span>].asInt64() &lt;&lt; endl;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;  cout &lt;&lt; <span class="stringliteral">&quot;Float:      &quot;</span> &lt;&lt; root[<span class="stringliteral">&quot;float&quot;</span>].asFloat() &lt;&lt; endl;</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;  <span class="comment">// * Load object arrays * //</span></div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">string</span> objname = <span class="stringliteral">&quot;batters&quot;</span>;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  <span class="keywordflow">if</span>(root[objname].isObject())</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordflow">for</span>(<span class="keyword">auto</span>&amp; member : root[objname].getMemberNames())</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;      cout &lt;&lt; member &lt;&lt; endl;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">string</span> arrname = <span class="stringliteral">&quot;testArray&quot;</span>;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="keywordflow">if</span>(root[arrname].isArray())</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i &lt; root[arrname].size(); ++i)</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;      cout &lt;&lt; root[arrname][i] &lt;&lt; endl;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;}</div><div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div></div>
<div class="ttc" id="JsonReader_8C_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="JsonReader_8C.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdef"><b>Definition:</b> <a href="JsonReader_8C_source.html#l00020">JsonReader.C:20</a></div></div>
<div class="ttc" id="namespaceJson_html"><div class="ttname"><a href="namespaceJson.html">Json</a></div></div>
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